The building was completed in 1421 but enlarged and adapted to the needs in the centuries that followed. The facade is richely decorated with gothic windows, towers, statues and the coat of arms of subordinate towns.
The Poortersloge was built at the end of the 14th and beginning of the 15th century in the commercial heart of Bruges. This side of Bruges was the area where the international trade took place, ships were loaded and unloaded.
At the time of its foundation its function was not limited to the health function but it also was a place where travellers could find shelter or the needy (in the broad sense of the word) could find help.